Pith Number

pith:M3P2JATF

pith:2018:M3P2JATFH7LMHSQFS7RCCPGB7C

not attested not anchored not stored refs pending

Star Edge Coloring of the Cartesian Product of Graphs

Behnaz Omoomi, Marzieh Vahid Dastjerdi

arxiv:1802.01300 v3 · 2018-02-05 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M3P2JATFH7LMHSQFS7RCCPGB7C}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:00:13.439964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66dfa482653fd6c3ca0597e2213cc1f8a6d2ecb92894b21720fa9a37ea89f7e8

Aliases

arxiv: 1802.01300 · arxiv_version: 1802.01300v3 · doi: 10.48550/arxiv.1802.01300 · pith_short_12: M3P2JATFH7LM · pith_short_16: M3P2JATFH7LMHSQF · pith_short_8: M3P2JATF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/M3P2JATFH7LMHSQFS7RCCPGB7C \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 66dfa482653fd6c3ca0597e2213cc1f8a6d2ecb92894b21720fa9a37ea89f7e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e02c2796dc22fc98e093d828660381b9f606af35cdf0f59ec78d531c24253cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-02-05T08:35:09Z",
    "title_canon_sha256": "ca6ccc6c5fed650a947dcba94b82ed4aec0ead4867067b47831d589d5b1dd0b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01300",
    "kind": "arxiv",
    "version": 3
  }
}